because the buffs are out of wack with the dots, (15s buffs and 16s dots) I think it's something like 6 minutes before the rotation goes back to exactly the same sequence. So you could make a rotation that cuts off dots or leaves space between dots, but it's not gonna be optimal. Probably the simplest would be to end up cutting a second off dots.
(Sl) (8s dots) (16s dots incl LL) (Fireball spam) (8s dots) (VB then fireball spam)
(IC) (8s dots) (16s dots) (Fireball spam) (8s dots) (VB then fireball spam)
But it's really gonna lose a fair bit of dps, and I don't think it'd stay above a 36/30 being played well.